Science

Scientists discover a hidden reason why muscles weaken with age

Scientists have uncovered a hidden defense mechanism in aging muscles that sacrifices strength to protect cells from damage.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated October 28, 2026, 1:04 PM UTC

In mice, partially restoring a crucial molecule reversed signs of muscle wasting and prevented premature death, raising hopes for new treatments for age-related muscle decline.

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